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Post by sebbe67 on May 12, 2005 7:49:50 GMT
Falco buboisi
is known only from subfossil bones collected by Bertrand Kervazo in the Grottes des Premiers Français on Réunion (to France) in 1974. The only historical record of small falcons is of the emerillons reported by Dubois in 1671–2 as distinct from pieds jaunes and papangue.
The specimens are deposited in the Muséum National d'Histoire Naturelle, Paris.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on May 12, 2005 8:17:39 GMT
Hi !
Falco duboisi ;D
Bye Alex
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Post by another specialist on Jun 6, 2005 6:22:13 GMT
Falco duboisi
Cowles 1994
Holocene of Réunion, w Mascarene Islands, wc Indian Ocean
Primary materials: Holotype: left tarsometatarsus
Secondary materials: Paratypes: left tarsometatarsus, left coracoïd, clavicula, right tibiotarsus (immature), incomplete lower jaw
Graham S. Cowles,
A new genus, three new species and two new records of extinct Holocene birds from Réunion Island, Indian Ocean
Géobios 27 (1994): 87-93
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Post by sebbe67 on Mar 5, 2006 14:37:02 GMT
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Post by cryptodude100 on Jun 5, 2006 12:51:20 GMT
Falco duboisi is larger than F. araea or F. newtoni and is slightly larger than F. punctatus. It was about the same size as F. tinnunculus. This species is characterized by a size generally comparable to that of F. tinnunculus but with more robust leg bones.
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Post by Carlos on Jul 5, 2006 18:40:04 GMT
In: Mourer-Chauviré, C. et al. Recent avian extinctions on Réunion (Mascarene Islands) from paleontological and historical sources. Bull B.O.C. 2006 126A
Falco duboisi Cowles, 1944, Réunion Kestrel
Dubois and another author mentioned kestrels. Dubois noted three different birds of prey. The first were Réunion Harriers Circus maillardi, a still extant species. 'The second ones are named yellow-feet, with the size and shape of falcons' (Barré & Barau 1982, our translation). The Réunion Kestrel is much larger than the endemic insular kestrels Falco araea (Seychelles Kestrel) and F. newtoni (Madagascar Kestrel), and slightly larger than F. punctatus (Mauritius Kestrel). It also differs from the latter by its less-reduced wings.
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Post by dysmorodrepanis on Jul 5, 2006 23:54:41 GMT
IIRC, Cheke (1987, in: Studies of Mascarene Island Birds) suggests that the pieds-jaunes are the immatures of C. maillardi. Certainly, they look different (especially if seen flying away), are smaller and have yellow feet. The papangue still denoted the adult (male) harrier today, and pieds-jaune is used for the immatures.
On the other hand, the "emerillons" ("Merlin falcons") seem too small for F. duboisi. Maybe they were tha latter's young, but these did most likely not look different enough.
The best explanation I can come up with is that the early authors had no opportunity tho measure the birds or compare them with European species, and thus, the smallest, falconish bird of prey was simly referenced with the name of the smallest falcon of Europe, although it was certainly larger.
Another theory is that the pieds jaunes represented vagrant or migrant falcons. Possibly, but only remotely - it would have been noted that the birds disappeared in summer.
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Post by another specialist on May 11, 2008 21:21:52 GMT
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Post by Bhagatí on May 6, 2019 11:42:42 GMT
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